/*
# Copyright (c) 2024 Huawei Device Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
*/

#ifndef OH_WEB_RTC_OHOS_VIDEO_BUFFER_H
#define OH_WEB_RTC_OHOS_VIDEO_BUFFER_H


#include "api/scoped_refptr.h"
#include "api/video/video_frame_buffer.h"
#include <GLES3/gl31.h>


namespace webrtc {
    namespace ohos {

        class OHOSVideoBuffer: public VideoFrameBuffer {
            public:
                struct TextureBuffer{
                    GLuint textureID;
                    enum class Type {
                        OES,
                        RGB
                    };
                    Type type;
                    float matrix[16];
                };
                
                static rtc::scoped_refptr<OHOSVideoBuffer> Creat(int width,
                                                            int height,
                                                            const TextureBuffer& textureBuffer);
    
                rtc::scoped_refptr<VideoFrameBuffer> CropAndScale(int crop_x,
                                                        int crop_y,
                                                        int crop_width,
                                                        int crop_height,
                                                        int scale_width,
                                                        int scale_height) override;
    
                TextureBuffer GetVideoFrameBuffer() const;
    
                ~OHOSVideoBuffer() override;
            protected:
                OHOSVideoBuffer(int width, int height, const TextureBuffer& textureBuffer);
            private:
                Type type() const override;
                int width() const override;
                int height() const override;
    
                rtc::scoped_refptr<I420BufferInterface> ToI420() override;
    
                const int width_;
                const int height_;
    
                const TextureBuffer textureBuffer_;
        };
    }
}


#endif //OH_WEB_RTC_OHOS_VIDEO_BUFFER_H
